Hello there!
Well i honestly do not think u should excercise anymore and if u still want to then u should definetaly do excercises that do not involve working on ur shoulder. Tt's obvious that while u were working out that the sound u heard must have been some cause of an injury and i really think u should go see a doctor right away before u make things worse. From the sounds of it i think it's most likely u tore ur shoulder ligament. Good luck!
- jen
p.s: I'm not sure about those excercises u want to do. I would strongly advise u on taking a 2 week rest and in that 2 weeks u must go see a doctor!